<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <!-- 准备一个容器 -->
  <div id="app">
    <App></App>
  </div>
  <script src="../vue.js"></script>
  <script src="./main.js"></script>
</body>
</html>